diff --git a/api/current.txt b/api/current.txt
index 6094bb31d4036..ebe62b8e7c3bf 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -47483,6 +47483,7 @@ package android.telephony {
     field public static final int DIAL_VIDEO_MODIFIED_TO_DIAL_VIDEO = 70; // 0x46
     field public static final int DIAL_VIDEO_MODIFIED_TO_SS = 67; // 0x43
     field public static final int DIAL_VIDEO_MODIFIED_TO_USSD = 68; // 0x44
+    field public static final int EMERGENCY_CALL_OVER_WFC_NOT_AVAILABLE = 78; // 0x4e
     field public static final int EMERGENCY_PERM_FAILURE = 64; // 0x40
     field public static final int EMERGENCY_TEMP_FAILURE = 63; // 0x3f
     field public static final int ERROR_UNSPECIFIED = 36; // 0x24
@@ -47502,6 +47503,7 @@ package android.telephony {
     field public static final int LOST_SIGNAL = 14; // 0xe
     field public static final int LOW_BATTERY = 61; // 0x3d
     field public static final int MAXIMUM_NUMBER_OF_CALLS_REACHED = 53; // 0x35
+    field public static final int MEDIA_TIMEOUT = 77; // 0x4d
     field public static final int MMI = 6; // 0x6
     field public static final int NORMAL = 2; // 0x2
     field public static final int NORMAL_UNSPECIFIED = 65; // 0x41
@@ -47523,6 +47525,7 @@ package android.telephony {
     field public static final int UNOBTAINABLE_NUMBER = 25; // 0x19
     field public static final int VIDEO_CALL_NOT_ALLOWED_WHILE_TTY_ENABLED = 50; // 0x32
     field public static final int VOICEMAIL_NUMBER_MISSING = 40; // 0x28
+    field public static final int WFC_SERVICE_NOT_AVAILABLE_IN_THIS_LOCATION = 79; // 0x4f
     field public static final int WIFI_LOST = 59; // 0x3b
   }
 
diff --git a/core/java/android/telephony/PhoneStateListener.java b/core/java/android/telephony/PhoneStateListener.java
index c36a33f7a53d2..cbc54a4a7fcf0 100644
--- a/core/java/android/telephony/PhoneStateListener.java
+++ b/core/java/android/telephony/PhoneStateListener.java
@@ -764,7 +764,8 @@ public class PhoneStateListener {
      *
      */
     @RequiresPermission((android.Manifest.permission.READ_PRECISE_PHONE_STATE))
-    public void onCallDisconnectCauseChanged(int disconnectCause, int preciseDisconnectCause) {
+    public void onCallDisconnectCauseChanged(@Annotation.DisconnectCauses int disconnectCause,
+            int preciseDisconnectCause) {
         // default implementation empty
     }
 
diff --git a/telephony/java/android/telephony/DisconnectCause.java b/telephony/java/android/telephony/DisconnectCause.java
index 26a6e43200b51..2704418935d96 100644
--- a/telephony/java/android/telephony/DisconnectCause.java
+++ b/telephony/java/android/telephony/DisconnectCause.java
@@ -22,6 +22,8 @@ import android.compat.annotation.UnsupportedAppUsage;
 /**
  * Describes the cause of a disconnected call. Those disconnect causes can be converted into a more
  * generic {@link android.telecom.DisconnectCause} object.
+ *
+ * Used in {@link PhoneStateListener#onCallDisconnectCauseChanged}.
  */
 public final class DisconnectCause {
 
@@ -333,20 +335,17 @@ public final class DisconnectCause {
     /**
      * Indicates that the call is dropped due to RTCP inactivity, primarily due to media path
      * disruption.
-     * @hide
      */
     public static final int MEDIA_TIMEOUT = 77;
 
     /**
      * Indicates that an emergency call cannot be placed over WFC because the service is not
      * available in the current location.
-     * @hide
      */
     public static final int EMERGENCY_CALL_OVER_WFC_NOT_AVAILABLE = 78;
 
     /**
      * Indicates that WiFi calling service is not available in the current location.
-     * @hide
      */
     public static final int WFC_SERVICE_NOT_AVAILABLE_IN_THIS_LOCATION = 79;